88991219988 has 216 divisors, whose sum is σ = 253518152160. Its totient is φ = 26292816000.

The previous prime is 88991219969. The next prime is 88991220029.

88991219988 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×88991219988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29475543 + ... + 29478561.

Almost surely, 2^88991219988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88991219988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126759076080).

88991219988 is an abundant number, since it is smaller than the sum of its proper divisors (164526932172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88991219988 is a wasteful number, since it uses less digits than its factorization.

88991219988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219 (or 3203 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 72.

The spelling of 88991219988 in words is "eighty-eight billion, nine hundred ninety-one million, two hundred nineteen thousand, nine hundred eighty-eight".